Winter vitamin d fix: fortified foods tested on teens

NCT ID NCT07349290

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at whether giving families foods naturally rich or fortified with vitamin D can improve vitamin D levels in teenagers during winter. About 160 households with at least one teen (11-17) and one adult will take part. Researchers will measure vitamin D in blood and ask about diet and food preferences.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Ulster University, Human Intervention Studies Unit, Coleraine, Co. Londonderry

    Coleraine, BT52 1SA, United Kingdom

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